Mr. Vicious and his sister volunteered at the shelter on Saturday.

The stray dog's vicious attack left several people injured.

Communities trapped in vicious circles of poverty and poor education struggle to break free.

Efforts to cut costs without addressing root problems only created more vicious cycles in the company's operations.

The budget cuts created a vicious cycle of understaffing and declining service quality.

When we cut maintenance to save money, equipment breaks down more often, causing production delays and lost revenue that force more budget cuts—a classic vicious circle.

After months of neglect, the alley cat grew viciouser, lashing out at anyone who came too close.

The villain's viciousness shocked even those who knew him well.

The stray dog barked viciously at anyone who approached.

Despite its reputation as the viciousest guard dog on the farm, Max was surprisingly gentle with the children.